Finding the Fourth Proportional to 104,359.02, 143,907.20 and 89,301.52

Step by Step Solution

1. Step 1: Write the proportion equation
   104,359.02 : 143,907.20 = 89,301.52 : x
2. Step 2: Convert to fraction form
   104,359.02/143,907.20 = 89,301.52/x
3. Step 3: Cross multiply
   104,359.02x = 143,907.20 × 89,301.52
4. Step 4: Simplify right side
   104,359.02x = 12,851,131,698.94
5. Step 5: Solve for x
   x = 12,851,131,698.94/104,359.02
6. Step 6: Final answer
   x = 123,143.47